Shunt-circuit tilting device for mercury-vapor lamps.



R. KiicH.

SHUNT CIRCUIT TILTING DEVICE FOR MERCURY VAPOR LAMPS.

APPLIOATIOH FILED MAY 23, 1910.

1,063,557. Patented June 3, 1913.

UNITE STATES PATENT OFFICE.

RICHARD zoom on HANAU, GERMANY, 'AssIGNoR, BY MESNE ASSIGNMENTS, TO

.ennmnn ELECTBJG GQMBANY, A CORPORATION or NEW YORK.

smmr-cmcurr TILTING DEVICE B, i iERcUnY-vAron LAMPS.

' pecification of Letters Potent.

Patentedslune 3, 1913.

To all whom it may concern:

Be it known that I, RICHARD Ktjcrr, a sub;

ject c t-the German Emperor, and resident of Heniru-on the=Main,Germany,- have invented certain new and useful Improvements inConnection with Shunt-Circuit 'filting' Devices for Mercury-Vapor Lamps,of which the" following is a specificartio Certain types of mercuryvapor lumps are started eye shunt magnet which sets inmotion an armatureconnected-with thelamp so Sir to give tothe lfamp the tilting motionrequired for starting it. When, in consequence of the are established bythis tilting motion, the main current passes through the lamp,- u switchelectromagnetically operated by the said main current, opens the shuntcircuit, the shunt magnet is deener'giued and the lamp returns to itsnormal position. Oh the main current being cut off from the lamp, thesaid switch is again closed. If for any reason the main current shouldfailto' pass through the lamp, the shunt remains switched in and thelamp remains in the" tilted position. The tilting back and therepetitionof the tilting motion only hitherto been capable of being doneby'switching: in v end out by hand.

While, with direct currentleinps, only one .tilting motion is required,when the lamps .sre operated by alternating current, failures instarting the lamps mustbe expected and this renders an automaticrepetition of the tilting motion desirable.

invention provides a device which effects-an automatic repetition of thetilting motion until the lamp becomes lighted, by which device theinterruption o-fthe shunt circuit is not alone caused electromagneticaHyby the flow of the main current, but

the up and down'motion of the tilting mechanism isutilized to open theshunt circuit a'fthe end .of the upward motion, and to close it again atthe end of the downward motion.

According to this invention there is provided, in addition to the switchelectromagnetically; operated by the main current, a

second switch which is in series with the first switch and is-ineludedin the shunt circuit which is opened and closed by the tiltingmechanism.

One of thejvh'rbis forms in which the invention mu'y be embodied isillustrated diagrammatically by Figures 1 and 2 of the accompany'i'ngdrawing.

Fig. 1 shows the whole arrangement at the instant when the tiltingmotion has been effected without the lighting of the lamp having takenplace and before the lamp commences to return to its normal position.Fig. 2 shows the device back In normal position with no current passingthrough the lamp between the main electrodes. The him is on the point ofbeing again tilted by t "e shunt magnet to the position shown in Fig. 1.

:When the lamp is in the initial or normal position shown in Fig.- 2,with ut current ipuss'mg through the lamp froxngene main :electrode tothe other, current car! new from the binding post at the left of the 1amfor example, through'the closed switch the shunt magnet, and the switchS to the binding post at the right hand of the lamp, energizing theshunt magnet, which lifts the armature N, to the position shown inFig. 1. This upward movement of the armature 'N. tilts the lamp B to theposition shown in Fig. 1. The switch S which is illustra-ted as a;mercury switch, hes bsniiafignru the upward movement of the armature'N,of the shunt magnet into the open circuit position by the rod S which 15rigidly conmeted with the shunt armature N, The switch S to'be o eratedby the main current has remained closed, because the main current failedto pass through the lamp.- 0 ening of the shunt circuitby the action 0the armature N on the switch S permits the lamp to return to its normalposition, the rod S (Fig. 2) returns the switch- S to the closed circuitposition and the tilting motion 'is repeated. If the main current comeinto action and pass through the lamp between the main electrodes theswitch S is energized by the flow of the main current through the lampand switches out the shunt current electromagnetically and the lampreturns automatically to' its normal position.

The mechanism may be varied in its de tails, and the switches S and 8,,can be combined in one and can be switched in and outelectro-magnetically by the main current, or mechanically by the tiltingmechanism.

I claim:

1. A shunt circuit tilting device for mercury vapor lamps comprising anelectrically operated tiltin device'c'onnected inn normally closedcircuit inshunt to the lamp, means responsive to the main current forveating movement to reestablish Stroke.

2. The combination with a vapor electric a main electric cirdevicestarted by tilting,

' at opposite ends of cuit including electrodes the device, a shuntcircuit, an electromagnet controlled by said shunt circuit to tilt thedevice to close the main circuit through said electrodes at oppositeends of the device, and means for automatically rendering the shuntcircuit inoperative when the main circuit is properly establishedthrough the length of the device, a switch actuated by the reciproofsaid said electromagnet being means constructed to open the limit oftravel of said electromagnet and the circuit by the return provided with3. The combination with a vapor electric lamp started by tilting, a mainelectric cir' cuit including electrodes at opposite ends of the lamp, ashunt circuit, a magnet energized by the shunt circuit to tilt thelamp,

and a switch for opening .the shunt circuit when the main circuit isproperly completed through the lamp, of a second switch in the shuntcircuit automatically opened and left open by each tilting movement ofthe lamp, and positively closed byt-he return of said lamp to itsinitial position. 4. The combination with a vapor electric lamp startedby tilting, cuit including electrodes at opposite ends of the lamp, andashunt circuit including a switch for opening said circuit when the maincircuit is properly completed through the lamp, of means actuated inresponse to current fiow in the shunt circuit for tilting the lamp andopening said shunt circuit as one end of the lamp reaches the limit ofits upward movement, and means for closing the shunt circuit only attheconclusion of the downward movement ofsaid end of the lamp.

5. The combination with a vapor electric lamp started by tilting, a mamelectric circuit including a plurality of fluid electrodes in the lamp,and a shunt circuit including a switch opened when the main circuit isprop flowing,

r 6. The combination electromagnet,

the switch near erly completed throu a main electric cir switch duringeach tilting movement of the lamp.

with a vapor electric started by"tilting, a including a plurality lampadapted to be main electric circuit 'of fluid electrodes in the lamp,and a shunt circuit including a switch adapted to be opened when themain circuit is properly completed through the lamp, of

a magnet adapted to be energized by the shunt circuit and having amovable" member connected with the lamp for tilting it, a second switchin the shunt circuit constructed to remain in either the open or theclosed position until positively moved into the other position, and twoseparated arms connect-- ed with the movable member of the magnet andadapted respectively to open and clr/se the last said switch during eachtilting movement of the lamp.

. The combination of a vapor electric lamp having fluid electrodes atits opposite ends andstarted by tilting 'to cause such fluid to flowfrom one end of the lamp to the other, a main electric circuit includi'nsaid electrodes, a shunt circuit includinga switch opened when the maincircuit is propgh the length lamp, a magnet energized by 'the shuntcircuit and connected with the lamp to tilt it as described, and meanswhereby said magnet will be de nergized on the completion of the tiltingmotion of one end of the lamp from normal position and reenergized onlyas said end returns to such normal position.

8. In a tilting vapor electric device having main electrodes throughwhich a flow of current may be started by tilting said device, thecombination of .electroresponsive tilting means connected in a shuntcircuit to said main electrodes, a switch in said shunt circuitconstructed to remain open until positivel closed, and means wherebysaid sw'itc is positively opened by said tilting means at the conclusionof one part of the tilting movement of the device and is posi tivelyclosed by the normal posit-ion. In a vapor electric device, tion of mainelectrodes, mounting said device to the combinapermit it to tilt andreturn to normal position, and thereby start a flow of current betweensaid main electrodes, electroresponsive tilting means con-- nected in ashunt circuit to said main electrodes, and means controlled by saidtilting of the means for pivotally return of said device to means formamtainings'aid shunt circuit closed during movement of said device inone direction and for maintaining said shunt circuit open duringthe-return of said device to its normal position.

l0. In a tilting vapor electric device havin main electrodes betweenwhich a flow of current may be started by tilting said Zlevice, thecombination of electroresponsive means at the conclusion of one part ofthe tilting movement of the device and is positively closed-by thereturn of said device to normal position.

11. The combination of a vapor electric device started by tilting,current connections therefor, automatic means for tilting said device tostart the same, a

switch in (ircuit therewith, means for opening said switch by themovement of said tilting means and means for closing said switch by thereturn of said tilting means to its original position so that its actionmay be repeated if the device has not started, and means fordeenergizing said tilting means while said device is in normaloperation.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RICHARD KUCH. itnesses FRANZ I'IASSLACHER,

IRWIN DIPPEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

